I read how you can adjust the auto changer cable for faster , sharper shifts... reduces auto clutch slip do you know about that?...My 'power' button just raises the upper shift point of the auto I think Toyota did not build a restricted exhaust... but smaller muffler sounds better on my v6 manual I have a magna flow on 2.5 pipe, awsome sound but too drony sound for everyday it is a manual and there is a HUGE difference in power delivery, and very nice to change gear, click. click... but I like the auto, I rarely have the pedal to the carpet, so why go for more if I don't even use what I got And so I'm selling the manual, it is lowered at the front as well, white with rego... what would it be worth you reckon... straight and clean.